#!/bin/bash

# Fix LittleShop Admin HTTP 500 Error Script
# Run this on the Hostinger server to diagnose and fix the issue

echo "=========================================="
echo "LittleShop Admin HTTP 500 Error Fix Script"
echo "=========================================="
echo ""

# 1. Check container status
echo "1. Checking container status..."
docker ps -a | grep littleshop-admin
echo ""

# 2. Check container logs for errors
echo "2. Checking recent container logs..."
docker logs --tail 100 littleshop-admin 2>&1 | grep -E "ERROR|Exception|fail|500|Unable"
echo ""

# 3. Check full recent logs
echo "3. Full recent logs (last 50 lines)..."
docker logs --tail 50 littleshop-admin
echo ""

# 4. Check database file permissions
echo "4. Checking database file permissions..."
ls -la /opt/littleshop/data/
echo ""

# 5. Check if database is accessible
echo "5. Testing database connectivity..."
docker exec littleshop-admin ls -la /app/data/ 2>/dev/null || echo "Could not access container filesystem"
echo ""

# 6. Check environment variables
echo "6. Checking environment variables..."
docker inspect littleshop-admin | grep -A 20 '"Env"'
echo ""

# 7. Try to fix common issues
echo "7. Attempting common fixes..."
echo ""

# Fix database permissions (UID 1654 as per baseline)
echo "   - Fixing database permissions..."
sudo chown -R 1654:1654 /opt/littleshop/data/ 2>/dev/null && echo "   ✓ Database permissions fixed" || echo "   ✗ Could not fix permissions"

# Ensure database file exists
if [ ! -f "/opt/littleshop/data/littleshop-production.db" ]; then
    echo "   ✗ Database file missing! Creating new database..."
    # The container will create it on restart
else
    echo "   ✓ Database file exists"
fi

# Check if container is running
if ! docker ps | grep -q littleshop-admin; then
    echo "   ✗ Container not running. Starting container..."
    docker start littleshop-admin 2>/dev/null || docker restart littleshop-admin
    sleep 5
    echo "   Checking status after restart..."
    docker ps | grep littleshop-admin
else
    echo "   - Container is running. Restarting to apply fixes..."
    docker restart littleshop-admin
    sleep 5
fi

echo ""
echo "8. Final status check..."
docker ps | grep littleshop-admin
echo ""

# Check if the site is responding now
echo "9. Testing HTTP response..."
curl -I http://localhost:5000 2>/dev/null | head -n 1 || echo "Local port 5000 not responding"
curl -I http://localhost:8080 2>/dev/null | head -n 1 || echo "Local port 8080 not responding"
echo ""

echo "10. Checking latest logs after fixes..."
docker logs --tail 20 littleshop-admin
echo ""

echo "=========================================="
echo "Diagnostic complete!"
echo ""
echo "Common issues and solutions:"
echo "1. Database permissions: Should be owned by UID 1654"
echo "2. Database file: Must exist at /opt/littleshop/data/littleshop-production.db"
echo "3. Environment vars: Check ASPNETCORE_ENVIRONMENT and ConnectionStrings"
echo "4. Container must be on 'littleshop-network' for service connectivity"
echo ""
echo "If still having issues, check the full logs above for specific error messages."
echo "=========================================="